Mini Wireless Cute Optical 2.4G Office Mouse $ 5.54 Type: Optical mouse Mouse size: mouse (100mm) Connection with computer: wireless Applicable models: desktop Photoelectric resolution: 1600dpi (dpi) Number of keys: 3 (keys) Interface: USB Wireless transmission frequency: 2.4GHz Whether to support ergonomics: not supported Adjustable resolution: three gears and below Operating distance: 10 (m) Working method: photoelectric Wheel direction: touch wheel